/Engine/Plugins/Experimental/PCG/Source/PCG/Public/Metadata/Accessors/PCGCustomAccessor.h
Very simple accessor that returns the index. Read only Key supported: All
class FPCGIndexAccessor : public [IPCGAttributeAccessorT< FPCGIndexAccessor >](API\Plugins\PCG\Metadata\Accessors\IPCGAttributeAccessorT)